Trigonometric Equations - Factorising Types

Examples, solutions, videos, activities and worksheets that are suitable for A Level Maths.

How to factorise Trigonometric Equations?

Trig. Equations : Factorising Types f(x) = 0

How to solve trig. equations in a given range which equal 0 and factorise?
How to use the quadrant method?
Example:
Solve sin x(1 - 2 cos x) = 0, 0° ≤ x ≤ 360°

Example:
Solve cos x(2 sin x + cos x) = 0, 0° ≤ x ≤ 360°

• Show Step-by-step Solutions

Example:
Solve 2 tan²x - tan x = 6, -180° ≤ x ≤ 180°

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